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Thread: Regression Lines

  1. #1
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    Regression Lines

    Can someone please explain this to me

    In a random sample of 40 students, the mean number of hours spent studying is 7.5 with a standard deviation of 2.4. If the mean grade received is 74% with a standard deviation of 6 and the correlation between the two is 0.86, the equation of the least square regression line that can be used to estimate the grade of a student based on the number of hours of studying that was done is grade=57.875+2.15hours.

    Thank you

  2. #2
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    Dragan's Avatar
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    Re: Regression Lines

    Ahmed: It is only necessary for you to make one post.

  3. The Following User Says Thank You to Dragan For This Useful Post:

    Ahmed.abdullah (10-11-2016)

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